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  <title>Set the URI containing the XML to parse</title>
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    <li>Set the URI containing the XML to parse</li>
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  <div id="layout-content"><div id="xmlreader.open" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">XMLReader::open</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">XMLReader::open</span> &mdash; <span class="dc-title">Set the URI containing the XML to parse</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-xmlreader.open-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="modifier">static</span> <span class="methodname"><strong>XMLReader::open</strong></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$uri</code></span>, <span class="methodparam"><span class="type">?</span><span class="type"><span class="type">string</span><span class="type"></span></span> <code class="parameter">$encoding</code><span class="initializer"> = <strong><code>null</code></strong></span></span>, <span class="methodparam"><span class="type">int</span> <code class="parameter">$flags</code><span class="initializer"> = 0</span></span>): <span class="type"><span class="type">bool</span>|<span class="type"><a href="class.xmlreader.html" class="type XMLReader">XMLReader</a></span></span></div>

  <p class="para rdfs-comment">
   Set the URI containing the XML document to be parsed.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-xmlreader.open-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">uri</code></dt>

     <dd>

      <p class="para">
       URI pointing to the document.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">encoding</code></dt>

     <dd>

      <p class="para">
       The document encoding or <strong><code>null</code></strong>.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">flags</code></dt>

     <dd>

      <p class="para">
       A bitmask of the <a href="libxml.constants.html" class="link">LIBXML_*</a> 
       constants.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-xmlreader.open-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>true</code></strong>， 或者在失败时返回 <strong><code>false</code></strong>。 If called statically, returns an
   <span class="classname"><a href="class.xmlreader.html" class="classname">XMLReader</a></span> 或者在失败时返回 <strong><code>false</code></strong>.
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-xmlreader.open-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   This method may be called statically, but prior to PHP 8.0.0, will issue an
   <strong><code>E_DEPRECATED</code></strong> error in this case.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-xmlreader.open-changelog">
  <h3 class="title">更新日志</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>版本</th>
      <th>说明</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>8.0.0</td>
      <td>
       <span class="methodname"><strong>XMLReader::open()</strong></span> is now declared as static method,
       but can still be called on an <span class="classname"><a href="class.xmlreader.html" class="classname">XMLReader</a></span> instance.
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 seealso" id="refsect1-xmlreader.open-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="methodname"><a href="xmlreader.xml.html" class="methodname" rel="rdfs-seeAlso">XMLReader::xml()</a> - Set the data containing the XML to parse</span></li>
    <li class="member"><span class="methodname"><a href="xmlreader.close.html" class="methodname" rel="rdfs-seeAlso">XMLReader::close()</a> - Close the XMLReader input</span></li>
   </ul>
  </p>
 </div>

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